Okay, that's the yield from an X-ray structure.

这是X射线衍射给出的结果
Why don't you get the nuclear positions,

为什么不能得到原子核的位置?
why do you get the electron positions?

为什么只能得到电子的位置?
Alex? Can't hear.

艾利克斯大声一点
Yes, it's too heavy, so it doesn't vibrate,

没错核太重了几乎不受光的影响
the nuclei, so they don't function as an antenna,

所以不能像电子一样
to give off the new waves the way the electrons do.

产生足够强的信号
Okay, so you get a result, which you can plot on a map.

得到的信息可以绘成一张地图
Now in the olden days when I started doing this kind of thing,

当初我开始从事这类研究时
the kind of map you got out was a big sheet of computer output paper,

成像图是打印在一张纸上的
and it had numbers on it,

上面标注着数字
and a given piece of paper

每张纸上的信息